It will never catch up

var x = 0;

var x2 = 50;

var counter = 0;

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

​

}

​

function draw() {

  counter++

  background(0);

  createLine();

  createLine2();

}

​

function createLine() {

  stroke(255,0,0);

  line(x,0,0,x);

  x += 5;

  if (x-(windowWidth/2) > windowWidth) {

    x = 0;

  }

}

​

function createLine2() {

  stroke(255,0,0);

  line(x2,0,0,x2);

  x2 += 5;

  if (x2-(windowWidth/2) > windowWidth) {

    x2 = 50;

  }

}

​